The ends of a stretched wire of length L are fixed at x = 0 and x = L. In one experiment, the displacement of the wire is $y_1=A\sin \frac{\pi x}{L}\sin \omega t$ and the energy is E₁, and in another experiment its displacement is $y_2=A \sin \frac{2\pi x}{L}\sin 2\omega t$ and the energy is E₂ then